Hi all,I'm going to get a 2nd hand E90 & contemplating between the 330i & 325i M Sport. According to the current market value (year 05-08), the 330i is cheaper than the 325i M Sport. 1. Road tax factor aside, which one will you opt to? I'm planning to move on to E92 in next 2 years.2. How much difference in terms of performance between a 325i M Sport & a standard 325i?3. Will the re sell value of a 325i M Sport better than a standard 325i?4. How to know if a 2nd hand M Sport model is genuine?All advices are very much appreciated.